Function extractExtensionFromPattern

eng/generate-website-data.mjs:363–375

* Extract file extension from a glob pattern

(pattern)

 * Extract file extension from a glob pattern
 */
function extractExtensionFromPattern(pattern) {
  // Match patterns like **.ts, **/*.js, *.py, etc.
  const match = pattern.match(/\*\.(\w+)$/);
  if (match) return `.${match[1]}`;

  // Match patterns like **/*.{ts,tsx}
  const braceMatch = pattern.match(/\*\.\{([^}]+)\}$/);
  if (braceMatch) {
    return braceMatch[1].split(",").map((ext) => `.${ext.trim()}`);
  }

  return null;
}

/**
 * Generate instructions metadata